Home / 826,610.70-1,240,389.09-321,106.17

Finding the Fourth Proportional to 826,610.70, 1,240,389.09 and 321,106.17

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Solution

The fourth proportional to 826,610.70, 1,240,389.09 and 321,106.17 is: 481,843.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,610.70 : 1,240,389.09 = 321,106.17 : x
  2. Step 2: Convert to fraction form
    826,610.70/1,240,389.09 = 321,106.17/x
  3. Step 3: Cross multiply
    826,610.70x = 1,240,389.09 × 321,106.17
  4. Step 4: Simplify right side
    826,610.70x = 398,296,589,999.69
  5. Step 5: Solve for x
    x = 398,296,589,999.69/826,610.70
  6. Step 6: Final answer
    x = 481,843.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.